Optimal coherence for beam propagation through random media

Timothy J. Schulz; Baoyong Liu

doi:10.1117/12.615998

18 August 2005 Optimal coherence for beam propagation through random media

Timothy J. Schulz, Baoyong Liu

Proceedings Volume 5892, Free-Space Laser Communications V; 58920L (2005) https://doi.org/10.1117/12.615998
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

In this paper we consider the optimal coherence for beam propagation through random media. First, we demonstrate that a beam that maximizes the average receiver intensity is fully coherent, and that the upper bounds on received intensity are nearly attained by a beam that is focused for clear air. Second, we demonstrate that a beam that maximizes the scintillation index (along with other criteria that trade-off the mean and standard deviation for the received intensity) is, in general, partially coherent. We conclude with an example in which modal intensities are optimized for a beam that is constructed from Hermite-Gaussian modes.

Citation Download Citation

Timothy J. Schulz and Baoyong Liu "Optimal coherence for beam propagation through random media", Proc. SPIE 5892, Free-Space Laser Communications V, 58920L (18 August 2005); https://doi.org/10.1117/12.615998

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